The flow control ports are described in the following
table. These signals are used to request a flow-control action from the transmit engine.
Valid flow control frames received by the MAC are automatically handled. The pause value in
the received frame is used to inhibit the transmitter operation for the time defined in IEEE
802.3-2008 specification. The frame is then passed to the client with
rx_axis_mac_tuser asserted to indicate to the client that it should be
dropped.
| Signal Name | Direction | Description |
|---|---|---|
| s_axis_pause_tvalid | In | It provides the pause request to the TEMAC. Upon request the MAC transmits a pause frame upon completion of the current data packet. |
| s_axis_pause_tdata[15:0] | In | This is the pause value to the TEMAC. This value inserted into the parameter field of the transmitted pause frame. |